Electrical field connections, 8-ton units | Emerson Figure i

Installation

Figure 8 Electrical field connections, 8-ton units

Field-supplied unit disconnect switch

Single- or three-phase electric service not provided by Liebert

Field-supplied 24V NEC Class 2 wiring to evaporator module

	Electric service	Factory-wired
	connection to contactor	Factory-wired
	or terminal block	to components on
		electric panel
	Single- or three-phase electric
	service not provided by Liebert
	High-voltage	Heat rejection connection.
	electric power	Heat rejection connection.
	electric power	Field-supplied 24V NEC
	supply entrance	Field-supplied 24V NEC
	supply entrance	Class 2 wiring.
	Low-voltage electric	Class 2 wiring.
	Low-voltage electric	Wire connections from evaporator module:
	power supply	1.	24V GND System 1
	entrance	2.	24V Supply System 1
		3.	High Pressure Alarm System 1
		4.	Hot Gas Bypass Connection System 1
	Earth ground connection	5.	24V GND System 2
	Earth ground connection	6.	24V Supply System 2
	terminal for field wiring	6.	24V Supply System 2
	terminal for field wiring	7.	High Pressure Alarm System 2
		7.	High Pressure Alarm System 2
		8.	Hot Gas Bypass Connection System 2
		9.	24V GND Condenser Fan
		10.	24V SUPPLY Condenser Fan
		Refer to tables or unit serial label		DPN000135
		for FLA, WSA and OPD values.		DPN000135
		for FLA, WSA and OPD values.		Rev. 1
				Rev. 1

10

Image 14

Emerson Figure i manual Electrical field connections, 8-ton units

Contents

Liebert Prop Fan Condensing Unit Example PFH037A-PL7 = 380/415-3ph-50Hz Table of Contents Figures Prop Fan Condensing Units Optional Equipment Equipment Inspection Location Considerations Model Numbers Dimensional Data, in. mm Lb. kg 60Hz 50Hz Dimensional DataNet Weight Cabinet and floor planning data, horizontal air discharge Footprint Dimensions Wall Mounting Piping and Electrical Connections Electrical and piping connections, horizontal air discharge 152 PFH096A- L General piping arrangement Electrical field connections, 1- to 5-ton units Top Air Discharge Models Electrical field connections, 8-ton units Single-phase, 1-3 ton model schematic, typical Three-phase, 3-5 ton model schematic, typical Three-phase, 8 ton model schematic, typical Piping Considerations Piping for Elevation Differences between PFH and Evaporator Equivalent lengths for various pipe fittings, ft m EvaporatorCondensing Unit Refrigerant charge in Liebert pre-charged R-407C line sets Pre-Charged Line SetsField-Fabricated Line Sets Line Size Length Charge R-407C Ft. m Lb-oz kg Liebert PFH unit charge levels and coupling size Recommended line sizes, OD Cu Line charges refrigerant per 100 ft m of Type L copper tube Installation of Piping to UnitsPiping connection sizes and torque Line Size OD Cu Coupling Size Torque, lb-ft. N-m Remove Existing Condensing Unit Filter Drier Selection and InstallationInstall the New Condensing Unit Evaporator Charge R-407C Indoor Unit Models Oz kg General System Charge RequirementsEvaporator Charge Levels Electrical Connections Low-Voltage Control Wire ConnectionsLow-Voltage Control Wire Sizing Electrical Data Nominal Input Voltage- Phase Capacity ElectricalNominal Input Voltage-Phase Capacity Electrical Electrical data-High ambient models 105F/41C 60Hz Electrical data-Quiet-Line models 95F/35C 60Hz Electrical data-High ambient models 105F/41C 50Hz Checklist for Completed Installation Electrical data Quiet-Line models 95F/35C 50Hz Liebert Lee-Temp Flood Back Head Pressure Control CompressorHigh Head Pressure Operation AdjustmentHot Gas Bypass Hot gas bypass diagram Electrical Failure-Burnout GeneralCompressor Failure Mechanical Failure Compressor Replacement Model Numbers 407C 60 Hz 50 Hz Oz kg Field Charge VerificationField verification charge Troubleshooting Problem Cause Remedy Uni Single-Phase&Three-Phase UPS Environmental SystemsWeb Site Monitoring Etwo